Delhi’s air quality remained in the ‘very poor’ category on Monday, a day after the city recorded the worst air day of the season, with the air quality index (AQI) spiking to 420 at some of the monitoring stations on Sunday.
According to the Central Pollution Control Board’s 4 pm daily bulletin, the 24-hour average AQI for Delhi stood at 309, improving by nearly 60 points from Sunday’s average of 366, both in the ‘very poor’ category.
Weather experts have predicted ‘severe’ air days for the national capital in the days to follow.
“Delhi’s air quality is very likely to be in the ‘very poor’ category from Sunday to Monday. The air quality is likely to be in the ‘severe’ category on Tuesday before returning to ‘very poor’ on Wednesday,” said the Centre’s Air Quality Early Warning System (EWS) in Sunday’s Bulletin. The agency’s daily bulletin was not published until 8:30 p.m. on Monday.
As per CPCB classification, an AQI between 0 and 50 is ‘good’, 51 to 100 ‘satisfactory’, 101 to 200 ‘moderate’, 201 to 300 ‘poor’, 301 to 400 ‘very poor’, and 401 to 500 ‘severe’.